Ohio Commercial Pesticide Applicator
Certification Category 10c Fumigation
Questions And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
Download Pdf
1. Category 10c in Ohio primarily covers which pesticide application
activity?
A. Structural fumigation
B. Aquatic weed control
C. Greenhouse pest management
D. Turfgrass disease control
Answer: A
Category 10c is specifically designated for fumigation activities, which
involve the use of toxic gases or vapors to control pests in enclosed or
sealed spaces.
2. Fumigants are best described as pesticides that:
A. Act only through direct contact
, B. Are applied as solids
C. Become gases under normal conditions
D. Work only when ingested
Answer: C
Fumigants function in the gaseous state, allowing them to penetrate
cracks, voids, and enclosed spaces where pests hide.
3. Which characteristic makes fumigants particularly hazardous to
humans?
A. Strong odor
B. Low vapor pressure
C. High toxicity through inhalation
D. Slow mode of action
Answer: C
Most fumigants are highly toxic when inhaled, making respiratory
exposure the primary hazard.
4. Which personal protective equipment is most critical when
handling fumigants?
A. Cotton gloves
B. Steel-toed boots
C. Respiratory protection approved for fumigants
D. Hearing protection
,Answer: C
Proper respiratory protection is essential because inhalation is the most
dangerous exposure route for fumigants.
5. Before a fumigation begins, the treatment area must be:
A. Painted
B. Posted with warning signs
C. Lightly ventilated
D. Sprayed with water
Answer: B
Warning signs alert others to the presence of fumigant gases and help
prevent accidental exposure.
6. Which statement about fumigant warning signs is correct?
A. They may be handwritten
B. They must be removed before aeration
C. They must remain until the area is safe for reentry
D. They are optional for small jobs
Answer: C
Signs must remain posted until the fumigated area has been properly
aerated and declared safe.
7. The term “aeration” in fumigation refers to:
A. Adding oxygen to soil
, B. Removing fumigant gas from the treated area
C. Sealing the structure
D. Increasing humidity
Answer: B
Aeration allows fumigant gases to dissipate to safe levels before
reentry.
8. Which factor most affects how quickly a fumigant disperses?
A. Color of the enclosure
B. Air movement and ventilation
C. Type of warning sign used
D. Brand name of the fumigant
Answer: B
Airflow and ventilation directly influence how fast fumigant gases are
removed.
9. Which document provides legally enforceable instructions for
fumigant use?
A. Safety Data Sheet only
B. Manufacturer brochure
C. Pesticide label
D. Training manual
Certification Category 10c Fumigation
Questions And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
Download Pdf
1. Category 10c in Ohio primarily covers which pesticide application
activity?
A. Structural fumigation
B. Aquatic weed control
C. Greenhouse pest management
D. Turfgrass disease control
Answer: A
Category 10c is specifically designated for fumigation activities, which
involve the use of toxic gases or vapors to control pests in enclosed or
sealed spaces.
2. Fumigants are best described as pesticides that:
A. Act only through direct contact
, B. Are applied as solids
C. Become gases under normal conditions
D. Work only when ingested
Answer: C
Fumigants function in the gaseous state, allowing them to penetrate
cracks, voids, and enclosed spaces where pests hide.
3. Which characteristic makes fumigants particularly hazardous to
humans?
A. Strong odor
B. Low vapor pressure
C. High toxicity through inhalation
D. Slow mode of action
Answer: C
Most fumigants are highly toxic when inhaled, making respiratory
exposure the primary hazard.
4. Which personal protective equipment is most critical when
handling fumigants?
A. Cotton gloves
B. Steel-toed boots
C. Respiratory protection approved for fumigants
D. Hearing protection
,Answer: C
Proper respiratory protection is essential because inhalation is the most
dangerous exposure route for fumigants.
5. Before a fumigation begins, the treatment area must be:
A. Painted
B. Posted with warning signs
C. Lightly ventilated
D. Sprayed with water
Answer: B
Warning signs alert others to the presence of fumigant gases and help
prevent accidental exposure.
6. Which statement about fumigant warning signs is correct?
A. They may be handwritten
B. They must be removed before aeration
C. They must remain until the area is safe for reentry
D. They are optional for small jobs
Answer: C
Signs must remain posted until the fumigated area has been properly
aerated and declared safe.
7. The term “aeration” in fumigation refers to:
A. Adding oxygen to soil
, B. Removing fumigant gas from the treated area
C. Sealing the structure
D. Increasing humidity
Answer: B
Aeration allows fumigant gases to dissipate to safe levels before
reentry.
8. Which factor most affects how quickly a fumigant disperses?
A. Color of the enclosure
B. Air movement and ventilation
C. Type of warning sign used
D. Brand name of the fumigant
Answer: B
Airflow and ventilation directly influence how fast fumigant gases are
removed.
9. Which document provides legally enforceable instructions for
fumigant use?
A. Safety Data Sheet only
B. Manufacturer brochure
C. Pesticide label
D. Training manual
